Calculating Protein Percentages of Eggs and Peas

[Chris2018]

Not only is there a difference between white egg layers, brown egg layers and broiler but also there's a difference between commercial/ hatchery and true heritage fowl plus we can throw in game fowl which also have different requirements.

 

[EggSighted4Life]

And if a chicken needs say 2500 kcals a day what percent of protein would one egg be?

Well, I think it's closer to 1600 calories for a chicken... but going just with that number for maths' sake... 24 calories from 1 egg protein would be ALMOST 1% (a little less than) of the total value.

But 70 calories from one egg... would be about 3%. of the total ration. We always say don't feed more than 10% total feed ration in treats.

We cannot base our chicken requirements according to the game bird feed guidelines.

 

[X_and_Z]

Is a chicken going to eat their caloric (energy) need OR a volume/weight?

Seems like a simple thing to me... If they eat to meet their energy, the calculation are based on calorie... and then wrapped into a tidy package that gives us a "weight" guideline for feeding... the must keep it as simple as possible for consumers. My dog feed always has kcal content listed.... and yes they do list their MAX moisture content also as a % of weight in the "dry" feed (since I presume moisture cannot be listed as a % of calories), in addition to fiber usually.

If I pack all fat calories which will be really dense... will my chickens then eat the same volume making for a much higher calorie content or would they simply stop once their ENERGY need is met?

Is the protein in our eggs meeting an energy need or a volume need?

I don't think it matters as long as you are consistent.

Typically, each organism needs:
1) A certain number of calories per day that depends on the individual but will usually fit in a small range particular to that species, its sex, age, reproductive status, activity level, etc.
2) A certain number of grams of protein per day, also depending on the individual but fitting into a narrow range particular to that species, its sex, age, reproductive status, activity level, etc.
3) A certain number of grams of fat, carbohydrate, vitamins, minerals, etc. that depend on the individual but will usually fit in a small range particular to that species, its sex, age, reproductive status, activity level, etc.

Since all the nutrient are in narrow ranges it is typically easiest to list them as percentages and since feeds are made with recipes it is easiest to list them as weight, not calories.

As for what chickens are eating - if your chickens are getting fat, something that is apparently an issue in backyard flocks, they are eating more than their caloric needs. If they are losing weight they are not eating enough calories. For animals (even humans) that need to loose weight a typical tactic is to replace a portion of the daily intake with an equal volume of a less calorie dense food so that they feel "full". Think giving green beans to dogs that need to lose weight.

 

[Akrnaf2]

L

And if a chicken needs say 2500 kcals a day what percent of protein would one egg be?

You are mixing watermelon with bananas.....
Let see, layers need feed that have 18% protein,
And I know that 1 kg of feed is 2500 Kcal
So you have said that a chicken needs 2500 kcal =1 kg of feed a day (!!)
18% of 1 kg =180 gram protein /day
One egg has 6 grams protein so:
6 grams/180 grams=3.33% of the daily protein requirement of the chicken.
You understand that this numbers aren't logical AT ALL!

 

[Kiki]

L

You are mixing watermelon with bananas.....
Let see, layers need feed that have 18% protein,
And I know that 1 kg of feed is 2500 Kcal
So you have said that a chicken needs 2500 kcal =1 kg of feed a day (!!)
18% of 1 kg =180 gram protein /day
One egg has 6 grams protein so:
6 grams/180 grams=3.33% of the daily protein requirement of the chicken.
You understand that this numbers aren't logical AT ALL!

I made up that number Benny. I have no idea how many a chicken needs per day.

Let's say 250 kcal is a better number to use. Someone above did the math already. I'm on the road again and can't look back but I think it was @x and z

 

[X_and_Z]

View attachment 1426187
Do these numbers means(2850) that a chicken needs that many calories per day?

Oddly, I can't see an identical chart. On some of the charts I can see that have similar looking info they indicate that the numbers that are shown that are similar to the 2850 that you are referencing refer to a particular calorie density of food (meaning that the food provides 2850 calories per kg).

 

[Chris2018]

Brown egg laying type hen (red sex-link, Hy-line, hatchery type R.I. Reds)
On a 100 grams of feed per day feeding.

1-32 wks of laying (2770 - 2860 kcal/kg)
32 - 44 wks of laying (2725 - 2860 kcal/kg)
44 - 55 wks of laying (2675 - 2860 kcal/kg)
> 55 wks of laying (2550 - 2825 kcal/kg)

 

[Akrnaf2]

Brown egg laying type hen (red sex-link, Hy-line, hatchery type R.I. Reds)
On a 100 grams of feed per day feeding.

1-32 wks of laying (2770 - 2860 kcal/kg)
32 - 44 wks of laying (2725 - 2860 kcal/kg)
44 - 55 wks of laying (2675 - 2860 kcal/kg)
> 55 wks of laying (2550 - 2825 kcal/kg)

The Kcal are the feed energy levels?

 

[Chris2018]

The Kcal are the feed energy levels?

Yes

 

[Akrnaf2]

Yes

Thanks.